Serbia Beach + Sunset & Sunrise Pictures

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Tour the gates, tunnels, ramparts and museum of this imposing 17th-century citadel, which hosts an annual music and arts festival.

Straddling the shores of the Danube, this welcoming riverside city features a fascinating collection of beaches, parks, pavement cafés and religious landmarks.

Straddling the shores of the Danube, this welcoming riverside city features a fascinating collection of beaches, parks, pavement cafés and religious landmarks.

Straddling the shores of the Danube, this welcoming riverside city features a fascinating collection of beaches, parks, pavement cafés and religious landmarks.

Tour the gates, tunnels, ramparts and museum of this imposing 17th-century citadel, which hosts an annual music and arts festival.

Despite being landlocked, this city has “Belgrade’s Sea,” a popular river retreat featuring a beautiful beach with watersports options.

Despite being landlocked, this city has “Belgrade’s Sea,” a popular river retreat featuring a beautiful beach with watersports options.

Despite being landlocked, this city has “Belgrade’s Sea,” a popular river retreat featuring a beautiful beach with watersports options.

Tour the gates, tunnels, ramparts and museum of this imposing 17th-century citadel, which hosts an annual music and arts festival.

Despite being landlocked, this city has “Belgrade’s Sea,” a popular river retreat featuring a beautiful beach with watersports options.

Despite being landlocked, this city has “Belgrade’s Sea,” a popular river retreat featuring a beautiful beach with watersports options.

Straddling the shores of the Danube, this welcoming riverside city features a fascinating collection of beaches, parks, pavement cafés and religious landmarks.

Straddling the shores of the Danube, this welcoming riverside city features a fascinating collection of beaches, parks, pavement cafés and religious landmarks.

Tour the gates, tunnels, ramparts and museum of this imposing 17th-century citadel, which hosts an annual music and arts festival.

Despite being landlocked, this city has “Belgrade’s Sea,” a popular river retreat featuring a beautiful beach with watersports options.